universal_drivers/hd44780u_driver
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commands needs double check..

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This commit is contained in:
Christian Lind Vie Madsen
2024-08-01 16:42:56 +02:00
parent 11257687c2
commit 75e645eebf
2 changed files with 31 additions and 8 deletions
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30
lcd_hd44780.c
View File

@@ -1,5 +1,8 @@
#include "lcd_hd44780.h"
#include <stddef.h>
void lcd_hd44780_writeToDisp(lcd_hd44780_t *inst){
inst->setGetGpio_event(&(inst->gpio_data),LCD_HD44780_SET);
@@ -43,6 +46,25 @@ static void lcd_writeCmd_disp(lcd_hd44780_t *inst, hd44780_cmd_t cmd, hd44780_se
inst->setGetGpio_event(&(inst->gpio_data),getSet);
}
void lcd_hd44780_initDisp(lcd_hd44780_t *inst){
// Wait for more than 15ms after VCC rise..
// Delay(15)
lcd_writeCmd_disp(inst, LCD_HD44780_FUNCTION_SET,LCD_HD44780_SET);
// Wait for 4.1ms..
// Delay(4)
lcd_writeCmd_disp(inst, LCD_HD44780_DISP_ONOFF_CTL,LCD_HD44780_SET);
// delay 100us
lcd_writeCmd_disp(inst, LCD_HD44780_ENTRY_MODE,LCD_HD44780_SET);
}
void lcd_hd44780_regGpioEvt(lcd_hd44780_t *inst, setGet_Gpio_Event_fpt getGpioEvt_fpt){
@@ -64,16 +86,16 @@ void lcd_hd44780_init(lcd_hd44780_t *inst, lcd_hd44780_bitmode bit_mode){
//inst->gpio_data = 0x00;
inst->bit_mode = bit_mode;
/*
inst->gpio_data.data_bus = 0x0;
inst->gpio_data.e_pin = 0x0;
inst->gpio_data.rs_pin = 0x1;
inst->gpio_data.rw_pin = 0x0;
inst->setGetGpio_event(&(inst->gpio_data), 1);
inst->setGetGpio_event(&(inst->gpio_data), 1);*/
lcd_writeCmd_disp(inst,LCD_HD44780_CLEAR_DISP,LCD_HD44780_SET);
lcd_hd44780_initDisp(inst);
//lcd_writeCmd_disp(inst,LCD_HD44780_CLEAR_DISP,LCD_HD44780_SET);
//lcd_writeCmd_disp(inst,LCD_HD44780_DISP_ONOFF_CTL,LCD_HD44780_SET);
return;

9
lcd_hd44780.h
View File

@@ -21,15 +21,16 @@ typedef enum {
LCD_HD44780_CLEAR_DISP = 0x1,
LCD_HD44780_RETURN_HOME = 0x2,
LCD_HD44780_ENTRY_MODE = 0x3,
LCD_HD44780_DISP_ONOFF_CTL = 0x4,
LCD_HD44780_ENTRY_MODE = 0x6,
LCD_HD44780_DISP_ONOFF_CTL = 0xE,
LCD_HD44780_CURSOR_SHIFT = 0x6,
LCD_HD44780_FUNCTION_SET = 0x30,
}hd44780_cmd_t;
typedef enum{
LCD_HD44780_GET = 0,
LCD_HD44780_SET = 1,
LCD_HD44780_SET = 0,
LCD_HD44780_GET = 1,
}hd44780_setGet_t;